Biofilm carrier element



FIG. 1 is a front perspective view of a biofilm carrier element;

FIG. 2 is a front elevational view of a biofilm carrier element, for which the rear view is an identical image of same;

FIG. 3 is a top view of a biofilm carrier element, for which the bottom view is an identical image of same;

FIG. 4 is a front and side perspective view of a biofilm carrier element;

FIG. 5 is a side perspective view of a biofilm carrier element;

FIG. 6 is a front perspective view of a biofilm carrier element; and,

FIG. 7 is a side perspective view of a biofilm carrier element. 

The ornamental design for a biofilm carrier element, as shown and described. 